Sunday, August20, 2017 L-36.com


Marine Weather and Tides
DuPont, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:12AMSunset 8:14PM Saturday August 19, 2017 9:16 PM PDT (04:16 UTC) Moonrise 2:43AMMoonset 6:01PM Illumination 5% Phase: Waning Crescent; Moon at 27 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ135 Puget Sound And Hood Canal- 900 Pm Pdt Sat Aug 19 2017
Tonight..N wind 5 to 15 kt becoming ne to 10 kt after midnight. Wind waves 1 ft or less.
Sun..N wind to 10 kt. Wind waves 1 ft or less.
Sun night..NE wind to 10 kt. Wind waves 1 ft or less.
Mon..N wind to 10 kt. Wind waves 1 ft or less.
Mon night..N wind to 10 kt. Wind waves 1 ft or less.
Tue..Light wind becoming nw to 10 kt in the afternoon. Wind waves 1 ft or less.
Tue night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Wed..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Thu..SE wind to 10 kt becoming nw. Wind waves 1 ft or less.
PZZ100 900 Pm Pdt Sat Aug 19 2017
Synopsis for the northern and central washington coastal and inland waters..A typical august pattern will prevail through the middle of next week. Expect onshore flow of varying strength to persist due to high pres offshore and lower pres east of the cascades. A weak system will approach the coastal waters on Wednesday and move inland Thursday.

7 Day Forecast for Marine Location Near DuPont, WA
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location: 47.12, -122.67     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 200410
afdsew
area forecast discussion
national weather service seattle wa
910 pm pdt Sat aug 19 2017

Synopsis Light onshore flow will give some areas of low clouds in
the late night and morning hours through Monday. The areas of night
and morning low clouds and fog should mainly on the coast and near
the water. High pressure will shift over the region Monday and
Tuesday for warmer temperatures. A trough will bring cooler weather
and a chance of showers late Wednesday and Thursday. High pressure
will build over the area again toward the end of the week.

Short term A few areas of low clouds should form along the
coast late tonight and there might be a few patches inland. Light
northwesterly onshore flow will give another nice day on Sunday
with highs into the 70s across much of the interior. Upper ridging
amplifies just offshore Sunday night then progresses eastward across
the region Monday and into western montana Tuesday afternoon. This
ridge will give sunny weather except for shallow morning low clouds
and fog--but mainly for the coast and over the waters. Around puget
sound and up through the inland waters fog or low clouds should burn
off over land pretty quickly but could linger through mid morning
over the water.

Long term Onshore flow later Tuesday will usher in a marine
push Tuesday afternoon and evening that will result in increased
clouds. The push will be followed by a frontal system that will
move across the area Wednesday night and a rather deep upper level
trough Thursday through Thursday night. Long term models appear to
be converging on a solution (between the GFS and ecmwf) where
there will be a threat of showers Wednesday afternoon through
Thursday evening. Thursday high temperatures will likely not reach
the 70 degree mark across most of the area with the clouds, some
showers, and the cooler air mass. Snow levels are expected to fall
to 6000 to 7000 feet in the north cascades Thursday or Thursday
night, and may impact campers and backpackers at higher
elevations.

As high pressure builds into southeastern british columbia Friday
through the weekend, offshore flow will give a good warming and
drying trend. Albrecht

Aviation Northwest flow aloft over western washington tonight
and Sunday as an upper ridge remains over the offshore waters. At
the surface, onshore flow will continue with high pressure
offshore and lower pressure east of the cascades.

Just some high clouds over most of the area through Sunday.

Shallow marine layer along the coast with MVFR ceilings
developing for a few hours Sunday morning.

Ksea... Just some high clouds at times through Sunday. North
northeast wind 5 to 10 kt backing to northwest again midday Sunday.

Felton

Marine A typical august pattern will prevail through the
middle of next week. Expect onshore flow of varying strength to
persist due to high pressure offshore and lower pressure east of
the cascades. A weak system will approach the coastal waters on
Wednesday and move inland Thursday. Small craft advisory west
winds are likely in the central and eastern strait of juan de
fuca in the evening and early morning hours each night. Felton

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 5 am pdt Sunday for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46121 11 mi44 min 5.8 69°F 1019.9 hPa56°F
TCNW1 - 9446484 - Tacoma, WA 17 mi47 min 68°F 54°F1021 hPa
TCMW1 - 9446482 - Tacoma Met, WA 17 mi47 min NW 7 G 8.9
EBSW1 - 9447130 - Seattle, WA 38 mi47 min N 2.9 G 7 69°F 56°F1021 hPa
WPOW1 - West Point, WA 39 mi77 min NNE 11 G 12 61°F 1021.2 hPa (-0.4)54°F
46120 47 mi40 min NNW 9.7 63°F 1020.4 hPa52°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Lewis / Gray U. S. Army Airfield, WA5 mi79 minNW 410.00 miFair72°F55°F55%1020.6 hPa
Tacoma / McChord Air Force Base, WA10 mi19 minN 610.00 miFair67°F52°F60%1021.3 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi24 minW 410.00 miFair64°F48°F58%1020.9 hPa
Olympia, Olympia Airport, WA16 mi23 minN 010.00 miFair65°F51°F61%1020.9 hPa
Pierce County-Thun Field, WA20 mi22 minN 010.00 miFair64°F53°F68%1021 hPa

Wind History from GRF (wind in knots)
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Last 24hrS5S5S5S5W5SW4SW5S3SW4CalmCalmSW3CalmSW3NW5SW6NW6W7NW5W5NW7NW6NW4W8
1 day agoW7W5CalmSE4CalmCalmSE4SE3CalmCalmSW5S3S4S5S4NW3W6W3W4SW6W8SW6W9SW6
2 days agoSW6W5SW5SW5S7S6S5CalmS7SE4CalmCalmCalmNW3SW4SW4CalmW5W5W7W6NW3CalmW8

Tide / Current Tables for Dupont Wharf, Washington
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Dupont Wharf
Click for Map
Sun -- 04:04 AM PDT     12.90 feet High Tide
Sun -- 04:53 AM PDT     Moonrise
Sun -- 06:14 AM PDT     Sunrise
Sun -- 11:16 AM PDT     -1.83 feet Low Tide
Sun -- 06:19 PM PDT     14.15 feet High Tide
Sun -- 07:43 PM PDT     Moonset
Sun -- 08:12 PM PDT     Sunset
Sun -- 11:54 PM PDT     5.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.78.310.312.112.912.410.88.45.22-0.5-1.8-1.40.63.87.410.71314.113.912.410.17.76

Tide / Current Tables for Nisqually Reach, Washington Current
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Nisqually Reach
Click for Map
Sun -- 01:59 AM PDT     0.75 knots Max Flood
Sun -- 04:18 AM PDT     -0.01 knots Slack
Sun -- 04:53 AM PDT     Moonrise
Sun -- 06:14 AM PDT     Sunrise
Sun -- 08:34 AM PDT     -1.68 knots Max Ebb
Sun -- 11:53 AM PDT     0.01 knots Slack
Sun -- 02:56 PM PDT     1.44 knots Max Flood
Sun -- 06:25 PM PDT     -0.00 knots Slack
Sun -- 07:43 PM PDT     Moonset
Sun -- 08:12 PM PDT     Sunset
Sun -- 09:56 PM PDT     -1.10 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.60.80.60.2-0.4-1-1.4-1.6-1.7-1.4-0.80.10.81.31.41.30.80.2-0.3-0.8-1-1.1-0.9

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (0,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.